如何提取段落中的某個句子？ Python

Question

我想從一個段落中提取某些句子，查看一組單詞Object C Statement: . 段落如下：

Object A 陳述：有一只貓，袋子里裝滿了肉。 那是一只戴着藍色帽子的紅貓。 Object B 聲明：有一只狗，袋子里裝滿了玩具。 那是一只戴着綠帽子的藍狗。 Object C 聲明：有一只海豚，袋子里裝滿了氣泡。 那是一只戴着橙色帽子的紫色海豚。 Object D 陳述：有一只斑馬，袋子里裝滿了草。 那是一匹戴着藍色帽子的白色斑馬。 Object E 聲明：有一只熊，袋子里裝滿了木頭。 那是一只戴着黑帽子的棕熊。

我要提取 Object C 語句：如下：

有一只海豚，袋子里裝滿了泡泡。 那是一只戴着橙色帽子的紫色海豚。

我遇到的所有示例都是拆分特定單詞等。

我試過這個，但它對我不起作用：

word="Object A Statement: There was a cat with a bag full of meat. It was a red cat with a blue hat. Object B Statement: There was a dog with a bag full of toys. It was a blue dog with a green hat. Object C Statement: There was a dolphin with a bag full of bubbles. It was a purple dolphin with an orange hat. Object D Statement: There was a zebra with a bag full of grass. It was a white zebra with a blue hat. Object E Statement: There was a bear with a bag full of wood. It was a brown bear with a black hat."
a, b, c, d, e = re.split(r"\B\s(?=[^\s:]+:)", word)
regex = re.compile(r"""Object A Statement\s(.*?)Object B Statement\s(.*?)Object C Statement\s(.*?)Object D Statement\s(.*?)Object E Statement\s(.*)""", re.S|re.X)
a, b, c, d, e = regex.match(word).groups()

Answer 1

您可以使用"\s*Object. Statement:\s*"拆分字符串

import re

word="Object A Statement: There was a cat with a bag full of meat. It was a red cat with a blue hat. Object B Statement: There was a dog with a bag full of toys. It was a blue dog with a green hat. Object C Statement: There was a dolphin with a bag full of bubbles. It was a purple dolphin with an orange hat. Object D Statement: There was a zebra with a bag full of grass. It was a white zebra with a blue hat. Object E Statement: There was a bear with a bag full of wood. It was a brown bear with a black hat."
result = re.split(r"\s*Object . Statement:\s*", word)
result = [r for r in result if len(r) > 0]
print("\n".join(result))

我得到以下結果。

There was a cat with a bag full of meat. It was a red cat with a blue hat.
There was a dog with a bag full of toys. It was a blue dog with a green hat.
There was a dolphin with a bag full of bubbles. It was a purple dolphin with an orange hat.
There was a zebra with a bag full of grass. It was a white zebra with a blue hat.
There was a bear with a bag full of wood. It was a brown bear with a black hat.